This book deals with the electron density distribution in molecules and solids as obtained experimentally by X-ray diffraction. It is a comprehensive treatment of the methods involved, and the interpretation of the experimental results in terms of chemical bonding and intermolecular interactions. Inorganic and organic solids, as well as metals, are covered in the chapters dealing with specific systems. As a whole, this monograph is especially appealing because of its broad interface with numerous disciplines. Accurate X-ray diffraction intensities contain fundamental information on the charge distribution in crystals, which can be compared directly with theoretical results, and used to derive other physical properties, such as electrostatic moments, the electrostatic potential and lattice energies, which are accessible by spectroscopic and thermodynamic measurements. Consequently, the work will be of great interest to a broad range of crystallographers and physical scientists.

X-Ray Charge Densities and Chemical Bonding (International Union of Crystallography Texts on Crystallography)

Science & Math

COPPENS, PHILIP

Chemistry

International Union of Crystallography

Have we been visited by extraterrestrial beings?Did these "ancient aliens" contribute to the birth of human civilization?Do our ancient monuments contain evidence of their presence?The Ancient Alien Question reveals an array of astonishing truths, including:A radically different understanding of the pyramids and how they were constructedThe origins of crystal skulls and how they were foundThe extraordinary stories behind monuments such as the Nazca lines and Puma Punku, and who built themHow extraterrestrials came to our planet and the evidence that supports thisAnalyzing the historical and archaeological evidence, Philip Coppens demonstrates that there is substantial proof that our ancestors were far more technologically advanced than currently accepted, and that certain cultures interacted with non-human intelligences. Our ancestors were clearly not alone.Forty years after Erich von Däniken posed these questions in Chariots of the Gods, Coppens provides clear and concise answers to the great historical enigmas.Your view of human history will never be the same again!

The Ancient Alien Question: A New Inquiry Into the Existence, Evidence, and Influence of Ancient Visitors

History

Americas

Tantor Audio

Have we been visited by extraterrestrial beings?Did these "ancient aliens" contribute to the birth of human civilization?Do our ancient monuments contain evidence of their presence?The Ancient Alien Question reveals an array of astonishing truths, including:A radically different understanding of the pyramids and how they were constructedThe origins of crystal skulls and how they were foundThe extraordinary stories behind monuments such as the Nazca lines and Puma Punku, and who built themHow extraterrestrials came to our planet and the evidence that supports thisAnalyzing   the historical and archaeological evidence, Philip Coppens demonstrates   that there is substantial proof that our ancestors were far more   technologically advanced than currently accepted, and that certain   cultures interacted with non-human intelligences. Our ancestors were   clearly not alone.Forty years after Erich von Däniken posed these questions in Chariots of the Gods, Coppens provides clear and concise answers to the great historical enigmas.Your view of human history will never be the same again!

Are history books giving us the whole story? Or is civilization far more complex and for older than we have been taught?Our school textbooks barely mention the 6,000-year-old Sumerian civilization, yet the latest archaeological findings at sites such as Jericho and, most recently, Gobekli Tepe in Turkey, have been dated to 10,000 BC.Civilization goes back at least another 10,000 years, if we are willing to believe what our ancestors themselves claimed.The Lost Civilization Enigma reveals the truth about:Lost magnitudes to known cultures, such as the Bosnian Pyramids and the civilization of "Old Europe";The fabled lost "golden" cities of South America and the Amazon, which are slowly being rediscovered;Fascinating examples of lost technology, such as the Antikythera Device;Atlantis and the fact that it was a real civilization.Analyzing  historical and archaeological records, bestselling author Philip Coppens demonstrates that there is substantial evidence that civilization is far older, far more advanced, and far more special than is currently accepted. Clearly, our history books have left out a great deal!

The Lost Civilization Enigma: A New Inquiry into the Existence of Ancient Cities, Cultures, and Peoples Who Pre-Date Recorded History

Religion & Spirituality

Occult & Paranormal

Examines the credibility of paranormal hypotheses that claim that aliens were responsible for the innovations of ancient civilizations, from the pyramids of Giza to terra preta.

Ancient Aliens: Close Encounters With Human History (Conspiracies and Cover-ups)

Children's Books

Science, Nature & How It Works

Rosen Young Adult

Have we been visited by extraterrestrial beings? Did these "ancient aliens" contribute to the birth of human civilization? Do our ancient monuments contain evidence of their presence? The Ancient Alien Question reveals an array of astonishing truths, including: 
<li>A radically different understanding of the pyramids and how they were constructed 
</li>
<li>The origins of crystal skulls and how they were found 
</li>
<li>The extraordinary stories behind monuments such as the Nazca lines and Puma Punku, and who built them 
</li>
<li>How extraterrestrials came to our planet and the evidence that supports this Analyzing the historical and archaeological evidence, Philip Coppens demonstrates that there is substantial proof that our ancestors were far more technologically advanced than currently accepted, and that certain cultures interacted with non-human intelligences. Our ancestors were clearly not alone. Forty years after Erich von Däniken posed these questions in Chariots of the Gods, Coppens provides clear and concise answers to the great historical enigmas in a most accessible and readable format. Your view of human history will never be the same again!</li>

New Age & Spirituality

Weiser

Are history books giving us the whole story? Or is civilization far more complex and for older than we have been taught? Our school textbooks barely mention the 6,000-year-old Sumerian civilization, yet the latest archaeological findings at sites such as Jericho and, most recently, Gobekli Tepe in Turkey have been dated to 10,000 BC. Civilization goes back at least another 10,000 years, if we are willing to believe what our ancestors themselves claimed. The Lost Civilization Enigma reveals the truth about: 
<li>Lost magnitudes to known cultures, such as the Bosnian Pyramids and the civilization of "Old Europe"; 
</li>
<li>The fabled lost "golden" cities of South America and the Amazon, which are slowly being rediscovered; 
</li>
<li>Fascinating examples of lost technology, such as the Antikythera Device; 
</li>
<li>Atlantis and the fact that it was a real civilization. Analyzing the historical and archaeological record, best-selling author Philip Coppens demonstrates that there is substantial evidence that civilization is far older, far more advanced, and far more special than is currently accepted. Clearly, our history books have left out a great deal!</li>

The Lost Civilization Enigma: A New Inquiry Into the Existence of Ancient Cities, Cultures, and Peoples Who Pre-Date Recorded History

Killing Kennedy: Uncovering the Truth Behind the Kennedy Assassination

BookBaby

See the best price to sell, buy, or rent books by COPPENS, PHILIP. BookScouter helps to compare book prices from 25+ online bookstores and 30+ buyback vendors with a single search.

Books by COPPENS, PHILIP

See the best price to sell, buy, or rent books by COPPENS, PHILIP. BookScouter helps to compare book prices from 25+ online bookstores and 30+ buyback vendors with a single search.

X-Ray Charge Densities and Chemical Bonding (International Union of Crystallography Texts on Crystallography)

The Ancient Alien Question: A New Inquiry Into the Existence, Evidence, and Influence of Ancient Visitors

The Ancient Alien Question: A New Inquiry Into the Existence, Evidence, and Influence of Ancient Visitors

The Lost Civilization Enigma: A New Inquiry into the Existence of Ancient Cities, Cultures, and Peoples Who Pre-Date Recorded History

The Ancient Alien Question: A New Inquiry Into the Existence, Evidence, and Influence of Ancient Visitors

The Lost Civilization Enigma: A New Inquiry into the Existence of Ancient Cities, Cultures, and Peoples Who Pre-Date Recorded History

Ancient Aliens: Close Encounters With Human History (Conspiracies and Cover-ups)

The Ancient Alien Question: A New Inquiry Into the Existence, Evidence, and Influence of Ancient Visitors

The Lost Civilization Enigma: A New Inquiry Into the Existence of Ancient Cities, Cultures, and Peoples Who Pre-Date Recorded History

Killing Kennedy: Uncovering the Truth Behind the Kennedy Assassination